SL-8 DEB, 21919

Orbit data source: Space-Track

SL-8 DEB, 21919 is space debris in LEO originally from a launch on Tue, 12 Feb 1991 UTC launched from the Plesetsk Missile And Space Complex (PKMTR). Debris objects in space refer to the collection of defunct objects orbiting the Earth. Examples of debris include non-operational satellites, rocket bodies, and fragments generated from explosions, collisions, or faulty payload assembly.

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<iframe src="https://www.satcat.com/sats-embedded/21919?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

https://www.satcat.com/sats-embedded/21919?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

21919, 1991-009CC

Orbit

LEO

Country

CIS

Related business

Russian Strategic Rocket Forces (RU)

Manufacturer

Unknown

Mission

Spacecraft

Bus & Motor

Unknown

Mass

Unknown

Launch date (UTC)

1991-02-12 (35 years ago)

Launch vehicle

Unknown

Launch site

Plesetsk Missile And Space Complex (PKMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown shape, 0.1 m

Radar Cross Section

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 15 hours ago

TLE from 15 hours ago

0 SL-8 DEB
1 21919U 91009CC  26171.27637610 -.00000046  00000-0 -47579-3 0  9997
2 21919  74.0650 106.0125 0356422   0.9402 151.4326 11.75207007508979

Epoch: 2026-06-20T06:37Z

TLE epoch observation values (Epoch: 2026-06-20T06:37:58.895Z)

Latitude

24.71775°

Longitude

-89.49378°

Altitude

2,054.344 km

Speed

6.769 km/s

True Right ascension

18h 33m 58s

True Declination

24° 36' 27"

Sunlit

Object was in partial shadow at epoch

Visualization orbit readout

Latitude

Unknown

Longitude

Unknown

Altitude

Unknown

Speed

Unknown

Apparent Right ascension

Unknown

Apparent Declination

Unknown

Sunlit

N/A

Visualization observer readout

Local Sidereal Time

08:46:28

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

2,082.919 km

Perigee altitude

1,500.535 km

Semi-major axis

8,169.864 km

Eccentricity

0.03564

Inclination

74.065°

RAAN

106.0125°

Arg. of periapsis

0.9402°

True anomaly

153.31169°

Mean anomaly

151.4326°

Eccentric anomaly

152.37937°

Mean motion

2.93914 °/min

Orbital period

122.48 mins

BSTAR

-0.00047579

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Other satellites on launch #9 in the year 1991 (1991-02-12 UTC)

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SL-8 DEB Visibility forecast

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Span	Click to sort rows by Start time (UTC) header in descending order	Start Az.	Max El. time (UTC)	Max El. Az.	Max El.	End time (UTC)	End Az.
16 mins	2026-06-20 22:14:28.951Z	240.118° WSW	2026-06-20 22:22:28.951Z	306.09° NW	30.074°	2026-06-20 22:30:28.951Z	5.79° NNE
15 mins	2026-06-21 04:49:28.951Z	5.617° NNE	2026-06-21 04:56:28.951Z	52.264° ENE	22.797°	2026-06-21 05:04:28.951Z	99.016° ESE
21 mins	2026-06-21 06:53:28.951Z	341.715° N	2026-06-21 07:02:28.951Z	9.611° NNE	44.84°	2026-06-21 07:14:28.951Z	162.629° S
14 mins	2026-06-21 09:00:28.951Z	310.13° NW	2026-06-21 09:06:28.951Z	273.553° WNW	21.302°	2026-06-21 09:14:28.951Z	227.555° WSW
8 mins	2026-06-21 18:41:28.951Z	109.887° ESE	2026-06-21 18:44:28.951Z	88.503° E	14.596°	2026-06-21 18:49:28.951Z	54.86° ENE
17 mins	2026-06-21 20:40:28.951Z	194.279° SSW	2026-06-21 20:48:28.951Z	53.784° ENE	44.846°	2026-06-21 20:57:28.951Z	19.996° NNE

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Co-orbital & Co-planar RSOs

Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions

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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

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Check out SL-8 DEB, 21919 on other resources

View SL-8 DEB, 21919 on Heavens-Above

View SL-8 DEB, 21919 on Keep Track

View SL-8 DEB, 21919 on Celestrak

View SL-8 DEB, 21919 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.

SL-8 DEB, 21919

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 15 hours ago

TLE from 15 hours ago

TLE epoch observation values (Epoch: 2026-06-20T06:37:58.895Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #9 in the year 1991 (1991-02-12 UTC)

SL-8 DEB Visibility forecast

Co-orbital & Co-planar RSOs

Check out SL-8 DEB, 21919 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 15 hours ago